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Electrokinetic Phenomena in Pencil Lead-Based Microfluidics
Fabrication of microchannels and associated electrodes to generate electrokinetic phenomena often involves costly materials and considerable effort. In this study, we used graphite pencil-leads as low cost, disposable 3D electrodes to investigate various electrokinetic phenomena in straight cylindri...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6190385/ https://www.ncbi.nlm.nih.gov/pubmed/30404407 http://dx.doi.org/10.3390/mi7120235 |
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author | Bashirzadeh, Yashar Maruthamuthu, Venkat Qian, Shizhi |
author_facet | Bashirzadeh, Yashar Maruthamuthu, Venkat Qian, Shizhi |
author_sort | Bashirzadeh, Yashar |
collection | PubMed |
description | Fabrication of microchannels and associated electrodes to generate electrokinetic phenomena often involves costly materials and considerable effort. In this study, we used graphite pencil-leads as low cost, disposable 3D electrodes to investigate various electrokinetic phenomena in straight cylindrical microchannels, which were themselves fabricated by using a graphite rod as the microchannel mold. Individual pencil-leads were employed as the micro-electrodes arranged along the side walls of the microchannel. Efficient electrokinetic phenomena provided by the 3D electrodes, including alternating current electroosmosis (ACEO), induced-charge electroosmosis (ICEO), and dielectrophoresis (DEP), were demonstrated by the introduced pencil-lead based microfluidic devices. The electrokinetic phenomena were characterized by micro-particle image velocimetry (micro-PIV) measurements and microscopy imaging. Highly efficient electrokinetic phenomena using 3D pencil-lead electrodes showed the affordability and ease of this technique to fabricate microfluidic devices embedded with electrodes for electrokinetic fluid and particle manipulations. |
format | Online Article Text |
id | pubmed-6190385 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-61903852018-11-01 Electrokinetic Phenomena in Pencil Lead-Based Microfluidics Bashirzadeh, Yashar Maruthamuthu, Venkat Qian, Shizhi Micromachines (Basel) Article Fabrication of microchannels and associated electrodes to generate electrokinetic phenomena often involves costly materials and considerable effort. In this study, we used graphite pencil-leads as low cost, disposable 3D electrodes to investigate various electrokinetic phenomena in straight cylindrical microchannels, which were themselves fabricated by using a graphite rod as the microchannel mold. Individual pencil-leads were employed as the micro-electrodes arranged along the side walls of the microchannel. Efficient electrokinetic phenomena provided by the 3D electrodes, including alternating current electroosmosis (ACEO), induced-charge electroosmosis (ICEO), and dielectrophoresis (DEP), were demonstrated by the introduced pencil-lead based microfluidic devices. The electrokinetic phenomena were characterized by micro-particle image velocimetry (micro-PIV) measurements and microscopy imaging. Highly efficient electrokinetic phenomena using 3D pencil-lead electrodes showed the affordability and ease of this technique to fabricate microfluidic devices embedded with electrodes for electrokinetic fluid and particle manipulations. MDPI 2016-12-15 /pmc/articles/PMC6190385/ /pubmed/30404407 http://dx.doi.org/10.3390/mi7120235 Text en © 2016 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Bashirzadeh, Yashar Maruthamuthu, Venkat Qian, Shizhi Electrokinetic Phenomena in Pencil Lead-Based Microfluidics |
title | Electrokinetic Phenomena in Pencil Lead-Based Microfluidics |
title_full | Electrokinetic Phenomena in Pencil Lead-Based Microfluidics |
title_fullStr | Electrokinetic Phenomena in Pencil Lead-Based Microfluidics |
title_full_unstemmed | Electrokinetic Phenomena in Pencil Lead-Based Microfluidics |
title_short | Electrokinetic Phenomena in Pencil Lead-Based Microfluidics |
title_sort | electrokinetic phenomena in pencil lead-based microfluidics |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6190385/ https://www.ncbi.nlm.nih.gov/pubmed/30404407 http://dx.doi.org/10.3390/mi7120235 |
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